Home / 31,641.03-43,658.46-18,212.85

Finding the Fourth Proportional to 31,641.03, 43,658.46 and 18,212.85

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Solution

The fourth proportional to 31,641.03, 43,658.46 and 18,212.85 is: 25,130.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,641.03 : 43,658.46 = 18,212.85 : x
  2. Step 2: Convert to fraction form
    31,641.03/43,658.46 = 18,212.85/x
  3. Step 3: Cross multiply
    31,641.03x = 43,658.46 × 18,212.85
  4. Step 4: Simplify right side
    31,641.03x = 795,144,983.21
  5. Step 5: Solve for x
    x = 795,144,983.21/31,641.03
  6. Step 6: Final answer
    x = 25,130.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.